Medically reviewed by Johnstone M. Kim, MD Key Takeaways Gray and green eye colors are the rarest in the world.Eye color is ...

A gorgeous cat named Clementine has captured hearts on the internet for her marvelous and extremely rare orange eyes. She is a black-colored British Shorthair feline who lives with Rachel, her owner, ...

When it comes to dogs, you've probably noticed that most of them have brown eyes, which is why meeting one sporting a different shade really makes them stand out. While you've probably seen a few pups ...

The mesmerizing colors of human eyes—from deep browns to vibrant blues, subtle greens, and rare ambers—result from intricate genetic factors that influence melanin production in the iris. This same ...